Hello!
Can someone help me and tell what's the element market in foto?
Best regards
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| A1278 (820-2936-A) chip identification needed https://vlab.su/viewtopic.php?f=51&t=30100 |
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| notemaster [ 07 мар 2015, 17:34 ] | |
| Заголовок сообщения: | A1278 (820-2936-A) chip identification needed |
Hello! Can someone help me and tell what's the element market in foto? Best regards |
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| swansic [ 07 мар 2015, 21:35 ] | |
| Заголовок сообщения: | Re: A1278 (820-2936-A) chip identification needed |
IC LED Backlight Driver - LP8550 http://www.ti.com/lit/ds/symlink/lp8550.pdf |
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| notemaster [ 09 мар 2015, 12:09 ] | |
| Заголовок сообщения: | Re: A1278 (820-2936-A) chip identification needed |
Thank you very much. It was very help me! Best regrads |
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| notemaster [ 31 мар 2015, 00:11 ] | |
| Заголовок сообщения: | Re: A1278 (820-2936-A) chip identification needed |
I changed chip and I have 40V on two capacitor (on the photo). But problem is, when I connect kable screen I have only 20V. I notice when screen has over 25V is starting high lighting.I changed this capacitor from screen but sytuation is the some. Any ide? |
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| notemaster [ 02 май 2015, 12:56 ] | |
| Заголовок сообщения: | Re: A1278 (820-2936-A) chip identification needed |
Solution. I changed chip and I have 40V on two capacitor (on the photo red). But problem is, when I connect kable screen I have only 20V(on the photo red). Problem was with one resistor( photo yellow). It had 10K but need to be 20K. That all problems. |
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